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USPTO Patent Rankings Data through Sept 30, 2025
IC

Idemitsu Kosan Co.

Rank (2021): #478 of 31,507Top 2%
151 inventors
88 Patents 2021

Top Inventors at Idemitsu Kosan Co. 2021

Showing 51–100 of 151 inventors

RankNamePatents
#19 Yuki TSURUMA 2
#52 Akira Asahi 1
#52 Akio Imai 1
#52 Akinori Yomogita 1
#52 Chishio Hosokawa 1
#52 Daijiro Endo 1
#52 Daisuke Takekawa 1
#52 Eiji Iwamoto 1
#52 Futoshi Utsuno 1
#52 Fumio Yamakawa 1
#52 Harutomo Ikeda 1
#52 Hideaki Hattori 1
#52 Hidetsugu Ikeda 1
#52 Hiroaki ITOI 1
#52 Hitoshi Kuma 1
#52 Hiroshi Oki 1
#52 Hiroyuki Saito 1
#52 Hidenori TORII 1
#52 Ikuko NAKAYA 1
#52 Jean-Charles Flores 1
#52 Jitsuo Shinoda 1
#52 Kayoko Aoyama 1
#52 Kazuyoshi Inoue 1
#52 Kazuo Yamamori 1
#52 Kenji Hosoi 1
#52 Kentaro Komori 1
#52 Keiji Okinaka 1
#52 Keita SEDA 1
#52 Kenji SUNAHARA 1
#52 Keiichi YASUKAWA 1
#52 Kiyohiko Yokota 1
#52 Mami ITOSE 1
#52 Masahiro Iwahara 1
#52 Masami Kanamaru 1
#52 Masato Kaneko 1
#52 Masaru Nakagawa 1
#52 Masato Nakamura 1
#52 Masaki Numata 1
#52 Masaki Okano 1
#52 Masatoshi Saito 1
#52 Masayuki Shibata 1
#52 Masatoshi Shibata 1
#52 Mitsunori Ito 1
#52 Mitsuru Koike 1
#52 Mitsuko Murata 1
#52 Motoharu Ishikawa 1
#52 Motohiro Takeshima 1
#52 Naoto HORITA 1
#52 Naoyuki Kawai 1
#52 Naoya Kawano 1